PHANEROGAMIA 



561 



Sub-Families. — 1. Genistoideae. — Leaves entire, simple or pinnate, stamens 

 usually united. Lupinus (Lupine), Cytisus (Laburnum), etc. 



2. Trifolioideae. — Leaves usually pinnate with toothed leaflets, fruit inde- 

 hisoent. Trifolium (Clover, Trefoil), with persistent perianth ; Medicago (Mediek), 

 with deciduous corolla and sickle-shaped or spirally-twisted legumes ; Trigonella 

 (Trigonel) ; Melilotus (Melilot, Sweet Clover), with flowers in loose racemes and 



Fig. 539.— Cytisus Laburnum. Flowering branch and young legumes (g liat - size). — Poisonous. 



small, elongated or globular legumes ; Ononis (Rest-Harrow), with monadelphous 

 stamens. 



3. Lotoideae. — Stamens diadelphous. Anthyllis (Kidney- Vetch) ; Lotus (Bird's- 

 foot Trefoil), etc. 



4. Galegoideae. — Leaves imparipinnate. Astragalus (Milk-Vetch), with legumes 

 imperfectly separated by a false dissepiment ; Robinia (Locust-tree), etc. 



5. Hedysaroideae. — Stamens diadelphous ; fruit a jointed legume or loment. 

 Coronilla, Hedysarum, Desmodium (Tick-Trefoil) ; Onobrychis (Sainfoin) ; Arachis 

 (A. hypogaea, the Pea-nut), etc. 



6. Vicioideae. — Leaves paripinnate, often terminating in tendrils (Fig. 537). 

 Vicia (Vetch), leaves with many leaflets ; LatJiyrus (Vetchling), usually with only 

 two leaflets ; Pisum (Pea), etc. 



2 T 



